Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Esperanto
ologo
→
Esperanto
zoologo
(confix)
→
Esperanto
antropologo
(suffix)
→
Esperanto
ideologo
(suffix)
→
Esperanto
psikologo
(suffix)
→
Esperanto
egiptologo
(suffix)
→
Esperanto
futurologo
(suffix)
→
Esperanto
psiĥologo
(suffix)
→
Esperanto
esperantologo
(suffix)